Concrete-mixer.



E. H. COWAN.

CONCRETE MIXER.

APPLICATION FILED I". I2. 1915.

1,164,383. PatentedSept. 21, 1915.

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amma aim E. H. COWAN.

CONCRETE MIXER. APPLICATION mm m. 12. ms.

1,154,383. PatentedSept. 21, 1915.

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(subsequently conveying the same from one EDWARD H. COWAN, OF EAST CLEVELAND, OHIO.

CONCRETE-MIXER.

Specification of Letters Iatent.

Patent-ed Sept. 21, 1915.

fa nmioa nledl'anaary 1:, 1915. Serial No. 1,828.

To all whom. it may concern.

Be it known that I, Enwaan H. Cowais, a citizen of the United States, residing at East Cleveland, in the county of'Cuyahoga and State of Ohio, have invented new and useful improvements in Concrete-ltlixers, of which the. followin is a specification.

The invention re ates to a mixing apparatus, and more particularly to the class of combined carriers and mixers for concrete.

The primary object of the invention is the provision of an apparatus of this character wherein the necessary ingredients or constituents for the making of concrete after introduced therein and during the conveyance of the same from one point to another will be thoroughly mixed rior to the discharge of the contents for elivery at a predetermined point, thereby obviatin the necessity of first mixing the materia and point to another by the use of independent devices or up )aratus.

Another 0 ject of the invention is the provision of an apparatus of this character wherein the water required for use in mixing the ingredients or constituents for the making of concrete will be supphod in a novel manner and at a determined time automatically while the materials or ingredients are in transit during the carriage thereof from one point to another, thus assuring the proper consistency and unity of the materials in a plastic state when delivered from the apparatus on reaching the delivery point thereof.

A further object of the invention is the provision of an ap aratus of this character which is novel in orm to insure reliability and eiliciency in the working thereof, and also to minimize labor for the handling of the materials.

A still further object of the invention is the provision of an apparatus of this character which is simple in construction, strong, durable, and inexpensive in manufacture.

\Vith these and other objects in view, the

invention consists in the construction, combination and arrangement of arts as will he hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims ereunto appended.

In the drawings :Figure 1 is a side elevation of a hoistmg tower showing the combined carrier and mixer constructed in accordance with the invention arranged therein and ositioned at'the lower end thereof. Fig."'2 1s a similar view showing the combined carrier and mixer located at the top of the tower. Fig. 3 is a fragmentary vertical sectional view with the carrier and mixer in the position shown in Fi 1. l ig. 4 is a view similar to Fig. 3, wit 1 the emnhined carrier and mixer in the position shown in Fig. 2. Fig. 5 is a sectional view on the line 5-5 of Fig. 1. Fig. 6 is a sectional view on the line 6-4) of Fig. 1.

Similar reference characters indicate correspondin arts throughout the several views in t e rawings.

Referring to the drawings in detail, A dcsi ates a hoisting tower, which in cross section is of rectangular shape to form interiorly thereof a guideway for receiving the combined carrier and mixer B hereinafter fully described.

The combined carrier and mixer comprises a movable frame 10 which is located within the tower for travel throughout the len th thereof, the said frame being guided in its travel in any suitable manner, and is raised and lowered in its course through the medium of the hoisting cable 11 operated from any suitable source of power. Within the frame 10 is a rotatable mixing drum 12 having the stud axle 13 therefor journaled in opposite sides of the frame 10, and upon one of these axles is fixed a double drum or windlass 14, on each of which is partly wound a cable 15 which is fixed thereto, while the outer ends of these cables are connected respectively to the top of the tower and the foundation or support therefor, so that on movement of the frame 10 either upwardly or downwardly within the tower the drum 12 will be rotated for the mixing of material placed therein, it being seen that during the travel of the frame in one direction one of the cables is unwound from the drum or windlass 14, while the other cable is wound thereon, and in this manner causing the rotation of the drum for the mixing of its contents.

Formed in the drum is an opening 16 serving to allow the introduction of materials therein and also the discharge of the mixture therefrom when the frame arrives at the bottom or top of the tower, the opening! 16 bein normally covered by means of a cor or s ide 17, and this openin is arranged in the drum 12 so that w on the frame 10 reaches the bottom of the tower it i U I" Iitl Ill)

will be located in the up ermost portion of the drum, and on arriva .of thevframe at the top of the tower the said opening will be located in the lower portionof the drum, thus it can be readily seen that thereiriug end thereof with a funnelor hopper 1!). while the delivery end is tapped in the body of the drum 12 for communication therewith, and this )ipc 18 is so arranged on the drum that when the samo is at the lower end of the tower A the funnel or.hopper 19 will be uppermost for receivingwater from a ponrin spout 20 which is swingiugly ctillllttlltttftt) a reservoir 21 outside of the tower A and supported at an elevation in any suitable manner, the spout .20 being titted with a suitable cut-oti valve 22 so that the feed of water can be re ulated at will. After the tilling of one of t e coils or convolutious of the pipe 18 withwater' the valve .22 is closed and the saidspout 20 is swung out of the path of movement of the frame so that during the elevation thereof the water will gravitate from one coil or convolution in the pipe 18 to another, during the rotation of the drum, and finally be delivered into the drum after the frame has reached a predetermined oint, of elevation so that the materials will adhere to each other subsequent to the mixing thereof for the formation of concrete, which will, be. in a roper moist state for delivery from the mixer after reaching the to of the tower the ruuerete thus mixed being dischar ed from the drum into a chute 28 for distri uf tion to any desired point.

It will )8 apparent that whenthe matcrials are delivered into the drum 12 and the frame 10 is elevated the said materials will be thoroughly mixed and the requisite amount of water fed thereto for forminga unity and a properly moistened concretefrom the drum at this point into the chute prior to the delivery of the concrete from the mixing drum when,reaching the top of the tower, the concrete being discharged 23 for distribution.

From the foregoing description, taken iniconnectionwith the accompanying drawings, the construction and manner of operation of the device willjbe clearl understood, and therefore a more extende explanation has been omitted.

What is claimed is:

1. An apparatus of th'otclass described comprising a hoisting tower, a frame movor, able within the tower throughout the extent thereof, a hollow drum journaled for rotation in said frame and having sections forming doors hinged thereto, a coiled water tube concentrically disposed about said drum botwoen the door sections and having one end opening into tho drum, a water tank located without the tower and having a discharge spout movable into a )OSil'lOll for supp ying water to the coil, an means for simultaneously raising and lowering the frame and rotating the said drum.

2. An apparatus of the class described comprising a hoisting tower, a frame movable within the tower throughout the extent thereof, a hollow drum journaled for rotation in said frame and having sections forming doors hinged thereto, a coiled water tube concentrically disposed about said drum between the door sections and having one end opening into the, drum, a water tank located without the tower and having a disohar e spout movable into a position for sup ying water to the coil, means for simu taneously raising and lowering the frame and rotating the said drum, a delivery chute extending from the tower near the uppermost point thereof, and a trough located within the frame for communication with the chute on the arrival of the frame at the upper end of the tower.

In testimony whereof I atiix my signature in presence of two witnesses.

EDWARD H. COWAN.

Witnesses:

Jami-2s A. FARRELL, WM. (i. Gama.

Copies of this patent may be obtained for sulphaital, by addressing the oonimluloner of Patents.

Wellington, Ii. 0." 

